Current media images of a "fortress Europe" suggest that migrations and borders are closely connected. The historical perspective demonstrates that such bordering processes are not new. However, they have developed new dynamics in different historical phases, from the formation of the modern (nation-)state in the nineteenth century to the creation of the European Union during the second half of the twentieth century. This book explains the dynamic relationships between borders and migratory movements in Europe from the nineteenth century to the present by approaching them from four different, overlapping angles: (1) the multiple actors involved, (2) scales and places of borders and their crossings, (3) the instruments and techniques employed and (4) the significance of social categories. Focusing on the historical, local specificity of the complex relations between migrations and boundaries will help denaturalize the concept of the border as well as further reflection on the shifting definitions of migration and belonging. The chapters in this book were originally published as a special issue of the